I've just started outdoor and indoor park skating and I'm loving it! I currently use Moxi skates with the triton plate and moxi gummy wheels they come with and just have a few questions...

1)

I've watched a few park skating videos now and I've noticed a few skaters with a white plastic slider/ grind box on their plate. This really appeals to me and for some reason I've got it in my head that it's more stable. I don't know why but I can't find anywhere in the UK that can make custom ones for you or any video tutorials on making them. I don't know if the plate matters or what for it either.

2)

I also have noticed skaters having skateboard trucks on their skates and I can't find tutorials for this either. This is something else I'm up for trying to come summer next year just to see what it's like but I imagine very strange at first.

If this has been posted before I apologise but I can't find anything and definitely not any in depth tutorials.

The skateboard trucks give you a wider stance, so if you have the tendency to fall over sideways go for it.
For most there's a more likely chance to bail forward/backwards but I don't see anyone with 1M long plates....lol.
QuadVert can be very punishing on trucks and axles...I do recommend these are beefed up.

"If the good Lord wanted us to walk he wouldn't have invented roller skates." ~Willie Wonka 1971

If you're looking for wider trucks, the Triton plate should take ACS651 trucks, but I wouldn't trust the Triton plate to last very long, it's prone to snapping in various places. I'd try and find a Sure Grip Super X plate , much more solidly built, but a bit heavier